1040042143 has 8 divisors (see below), whose sum is σ = 1197694080. Its totient is φ = 884658840.

The previous prime is 1040042137. The next prime is 1040042149. The reversal of 1040042143 is 3412400401.

It is an interprime number because it is at equal distance from previous prime (1040042137) and next prime (1040042149).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1040042143 - 2²¹ = 1037944991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1040042143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040042149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566173 + ... + 568006.

It is an arithmetic number, because the mean of its divisors is an integer number (149711760).

Almost surely, 2^1040042143 is an apocalyptic number.

1040042143 is a deficient number, since it is larger than the sum of its proper divisors (157651937).

1040042143 is a wasteful number, since it uses less digits than its factorization.

1040042143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134317.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1040042143 is about 32249.6843860525. The cubic root of 1040042143 is about 1013.1730887561.

Adding to 1040042143 its reverse (3412400401), we get a palindrome (4452442544).

The spelling of 1040042143 in words is "one billion, forty million, forty-two thousand, one hundred forty-three".